User manual

905U Wireless I/O Module User Manual
105S Serial I/O Module
Page 46 © October 2001
Debounce time operates on the set-point status in the same way as digital inputs.
To change a setpoint values, select “SetPoints” on the left-hand menu and double-click the selected
Setpoint Status.
Pulse Input Count Configuration
PI1 of the -2 and -4
modules normally
count up to 100Hz
(as for the other
PI’s), however can
be configured to
count up to 1000Hz.
This configuration
actually divides the
input count by 10 -
each count in the PI1
register is then
equivalent to 10
input pulses. If PI1
is mapped to a PO, then the maximum output pulse rate is 100Hz, however each output pulse is
equivalent to 10 input pulses.
To configure the “divide by 10” feature, select “Pulse Inputs” on the left-hand menu and select the
“Count” page - double-click “Pulse Input 1 Count” and enable “divide by 10” counting.
Pulse Input Rate Scale Configuration
When a pulse rate is mapped to
an analog output, the rate must
be scaled to the 4-20mA output.
The pulse rate scale is the rate
(in Hz) corresponding 20 mA.
To configure the pulse rate
scale, select “Pulse Inputs” on
the left-hand menu and select
the “Rate” page - double-click
the pulse input rate and enter the
scale value.